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Aug. 20, 1929. E. L. CLAUS ET AL OVEN nan REGULATING mzvrcn Filed Nov. 3, 1928 Q 5 U i i Mam Patented Aug. 20, 1929.

UNITED STATES PATENT OFFICE.

EMIL L. CLAUS AND WALTER E. CLAUS, OF MILWAUKEE, WISCONSIN, ASSIGNORS TO CLAUS MANUFACTURING COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORA- TION OF WISCONSIN.

OVEN-HEAT-REGULATING DEVICE.

Original application filed October 14, 1522, Serial No. 594,606. Divided and this application filed November 3, 1928.

This invention relates to certain new and useful improvements in oven heat regulating devices and is a division of our co-pending application, filed October 14st, 1922, Serial No. 594,606.

()ne objection to existing types of oven temperature regulating devices is the inability of the operator to readily view the temperature setting dial without stooping and subjecting his or her face and arms to the possibility of being burned, and, therefore, this invention has as an object the provision of an improved type of dial which is so constructed and arranged as to permit ready visibility without any effort on the part of the operator.

Another object of this invention resides in the provision of an improved manner of mounting the dial of an oven heat regu lator whereby its angular position may be readily adjusted.

\Vith the above and other objects in view which will. appear as the description proceeds, our invention resides in the novel construction, combination and arrangen'ient of parts substantially as hereinafter described and more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of. the herein disclosed invention may be made as come within the scope of the claims.

In the accompanying drawing, we have illustrated one complete showing of the physical embodiment of our invention constructed according to the best mode we have so far devised for the practical application of the principles thereof, and in which: Figure 1 is a top plan view of an oven heat regulator embodying our invention, parts thereof being broken away and in section to more clearly illustrate structural details, and

Figure 2 is a transverse sectional View taken through Figure 1 on the plane of the line 2-2.

Referring now more particularly to the accompanying drawing, the numeral 5 rep resents one wall of a heating oven which is cut away or apertured, as at 6, to permit the insertion therethrough of the mounting member 7 of abi-metallic temperature sensitive member 8.

The mounting member 7 is preferably an Serial No. 317,080.

elongated chamber having sides 9 forming bafiies and between which the thermal member 8 is so mounted as to cause its medial portion to bow, when subjected to a temperature change, to vary the setting of the valve member 10 of a control valve 11 preferably positioned exterior-1y of the oven wall. As is customary, the valve 11 is located in the fuel line 12 of the oven burners, not shown. and the valve member 10, which is yieldably urged to its closed position by an expansile spring 13, moves with any variation of the thermal member 8 through its connection therewith by a valve stem 14 to control the volume of fuel fed to the burners.

One end of the thermal member 8 is'connected with its mounting member by a screw 15 and its other end is connected with the inner end of an axially adjustable member 16 which passes outwardly of the oven through an opening in a boss 17 extended from the mounting member in which it is threaded. The outer end of the screw 16 is provided with an adjusting knob 18 and its medial portion has a spool shaped member 19 adjustably fixed thereto in the groove of which rides a stud 20 carried by an indicator finger 21.

The indicator finger 21 is pivotally mounted at its medial point on a dial 22 having suitable graduations at its top and bottom edges with which the indicator finger cooperates and having an angularly directed flange 23 extended from one side. The flange 23 is apertured to receive the boss 17 about which it is rotatably adjustable to vary the angular position of the dial, and the dial isvsecured in any desired angular position of adjustment by a screw 25 passed through an arcuate slot 24 in the flange concentric with the boss. 17, and threaded in the mounting member 7.

The stud 20, which is carried by the indicator finger 21, is spaced from the pivot of the finger and is in radial alignment With the axis of the adjusting screw 16, being positioned between the flanges of the spool member 19, so that as the screw is threaded into and out of the mounting member to adjust the position of the thermal member 8 with respect to the valve 10, a. corresponding movement of the indicator finger is effected whereby the position of the thermal member may be readily determined and controlled. A contractile spring 26 having one end fixed to a stud 27 carried by the dial and its other end secured to a stud 528 EX." tended from the indicator is provided to maintain the indicator carried stud 20 in engagement with one flange of the spool 19 and thus eliminate errors otherwise resulting in the event of lost motion between the spool flange and the stud.

From the foregoing description, taken in connection with the accompanying drawing, it will be readily apparent to those skilled in the art to which an invention of this character appertains that novel means are providcd for mounting the dial of an oven heat regulator whereby its angular position may be readily adjusted in a simple and eiiicient manner.

\Vhat we claim as our invention is:

l. The combination with an oven heat regulator, of a setting dial, means pivotally mounting the setting dial whereby the angular position of its face may be adjusted, and means for securing the dial in various positions of adjustment.

2, The combination with an oven heat regulator, including a support having a part extended therefrom, a setting dial, a flange carried by the setting dial and apertured to receive said part whereby the angular position of the face of the dial may be adjusted by rotating the same about said part, and means for securing the dial in various positions of adjustment.

3. In a device of the character described, a temperature responsive member, means for adjusting the temperature responsive member, a setting dial, a pointer movably connected with the setting dial, cooperating means carried by the pointer and the means for adjusting the temperature responsive member whereby movement of said means to adjust the member is indicated by the pointer, and means for mounting the setting dial whereby the angular position of the face of the dial may be adjusted withoutdisturbing the cooperating connection between the pointer and the adjusting means.

4-. The combination with an oven heat regulator, of a setting dial, and means adjustably mounting the setting dial whereby the angular position of its face may be adjusted.

5. In a device of the character described, an adjusting post, a setting dial, means mounting the setting dial for rotation about the axis of said post, means for securing said dial in the desired position of adjustment, an indicator pivotally carried by said dial, a pin carried by said indicator to one side of its pivot, and an annularly grooved collar member mounted on said post in which said indicator pin is engageable.

6. The combination with an oven heat regulator including an adjusting member, of a setting dial, cooperating means carried by the adjusting member and the setting dial to indicate on the dial the position of the adjusting member, and means mounting the setting dial for movement about the axis of the adjusting member whereby the angular position of the face of the dial may be adjusted without disturbing the indicating means.

7. The combination with an oven heat regulator including an adjusting member, of a setting dial having suitable delineations, means cooperating with the setting dial delineations and operable upon actuation of the adjustingmember to indicate the state of adjustment of the regulator, and means for mounting the setting dial whereby the angular position of the face of the dial may be adjusted without disturbing the connection between said first mentioned means and the adjusting member.

In testimony whereof we have hereunto afiixed our signatures.

EMIL L. CLAUS. WALTER E. CLAUS. 

